Home / 78,528,862.15-117,806,062.88-23,202,311.11

Finding the Fourth Proportional to 78,528,862.15, 117,806,062.88 and 23,202,311.11

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Solution

The fourth proportional to 78,528,862.15, 117,806,062.88 and 23,202,311.11 is: 34,807,239.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,528,862.15 : 117,806,062.88 = 23,202,311.11 : x
  2. Step 2: Convert to fraction form
    78,528,862.15/117,806,062.88 = 23,202,311.11/x
  3. Step 3: Cross multiply
    78,528,862.15x = 117,806,062.88 × 23,202,311.11
  4. Step 4: Simplify right side
    78,528,862.15x = 2,733,372,921,585,982.50
  5. Step 5: Solve for x
    x = 2,733,372,921,585,982.50/78,528,862.15
  6. Step 6: Final answer
    x = 34,807,239.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.